Goodwill (Carrying Amount of Goodwill by Reportable Segment) (Detail) $ in Millions |
6 Months Ended |
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Jun. 30, 2026
USD ($)
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| Goodwill [Line Items] | |
| Balance at beginning of period | $ 1,819.3 |
| Acquisitions | 0.9 |
| Foreign currency translation | (1.9) |
| Balance at end of period | 1,818.3 |
| Title Insurance and Services | |
| Goodwill [Line Items] | |
| Balance at beginning of period | 1,778.4 |
| Acquisitions | 0.9 |
| Foreign currency translation | (1.9) |
| Balance at end of period | 1,777.4 |
| Home Warranty | |
| Goodwill [Line Items] | |
| Balance at beginning of period | 40.9 |
| Acquisitions | 0.0 |
| Foreign currency translation | 0.0 |
| Balance at end of period | $ 40.9 |
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- Definition Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) asset representing future economic benefit from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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